Kern County, CA

686 public highway bridges

Kern County Bridge Snapshot

Kern County, California contains 686 public highway bridges in the FHWA National Bridge Inventory. Roughly 32.7% are rated “Good,” 32.8% “Fair,” 4.5% “Poor,” and 4.5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

686

Total Bridges

32.7%

Good

4.5%

Poor

4.5%

Structurally Deficient

Condition Distribution

Good

32.7% (224)

Fair

32.8% (225)

Poor

4.5% (31)

SD

4.5% (31)

All Bridges (686)

Sort:

WILLOW SPRINGS RD

Over: STATE ROUTE 58

09-KER-058-R95.21, Kern, CA

Built 1970 ADT: 41,000

DENNISON ROAD

Over: STATE ROUTE 58

09-KER-058-R92.75, Kern, CA

Built 1970 ADT: 42,400

STATE ROUTE 202

Over: STATE ROUTE 58

09-KER-202-11.99, Kern, CA

Built 1970 ADT: 20,900

STATE ROUTE 58 WB

Over: UP RR,BNSF,TEHACHAPI BL

09-KER-058-R94.16, Kern, CA

Built 1970 ADT: 6,500

STATE ROUTE 58 EB

Over: UP RR,BNSF,TEHACHAPI BL

09-KER-058-R94.16, Kern, CA

Built 1970 ADT: 6,500

CAMERON ROAD

Over: STATE ROUTE 58

09-KER-058-R101.56, Kern, CA

Built 1970 ADT: 40,000

HERRING RD

Over: STATE ROUTE 99

06-KER-099-9.30, Kern, CA

Built 1967 ADT: 45,250

S CHESTER AVE OC

Over: ROUTE 58

06-KER-058-R53.52-BKD, Kern, CA

Built 1976 ADT: 40,500

KIMBERLINA RD

Over: STATE ROUTE 99

06-KER-099-R41.16, Kern, CA

Built 1968 ADT: 134,000

BORON AVENUE

Over: STATE ROUTE 58

09-KER-058-R142.88, Kern, CA

Built 1971 ADT: 31,100

BORAX ROAD

Over: STATE ROUTE 58

09-KER-058-R139.80, Kern, CA

Built 1971 ADT: 34,000

GEPHART ROAD

Over: STATE ROUTE 58

09-KER-058-R137.77, Kern, CA

Built 1971 ADT: 34,000

MILL STREET

Over: STATE ROUTE 58

09-KER-058-R91.67-THPI, Kern, CA

Built 1970 ADT: 42,400

20 MULE TEAM ROAD

Over: STATE ROUTE 58

09-KER-058-R136.40, Kern, CA

Built 1971 ADT: 34,000

BOUNDARY FLAT RD

Over: STATE ROUTE 178

06-KER-178-R39.88, Kern, CA

Built 1968 ADT: 4,200

STATE ROUTE 58 WB

Over: SR 184 (WEEDPATCH HWY)

06-KER-058-R59.43, Kern, CA

Built 1974 ADT: 14,700

STATE ROUTE 58 EB

Over: SR 184 (WEEDPATCH HWY)

06-KER-058-R59.43, Kern, CA

Built 1970 ADT: 21,100

VINELAND ROAD

Over: SR 58

06-KER-058-R60.45, Kern, CA

Built 1970 ADT: 32,500

EDISON ROAD

Over: SR 58

06-KER-058-R61.51, Kern, CA

Built 1970 ADT: 23,000

MALAGA ROAD

Over: SR 58

06-KER-058-R62.53, Kern, CA

Built 1970 ADT: 31,000

COMANCHE DRIVE

Over: SR 58

06-KER-058-R63.58, Kern, CA

Built 1970 ADT: 21,200

TEJON HWY

Over: SR 58

06-KER-058-R64.63, Kern, CA

Built 1970 ADT: 26,000

TOWER LINE ROAD

Over: SR 58

06-KER-058-R65.68, Kern, CA

Built 1970 ADT: 20,000

OSWELL ST

Over: ST RTE 178

06-KER-178-R5.60-BKD, Kern, CA

Built 1970 ADT: 60,000

DAWN ROAD

Over: STATE ROUTE 14

09-KER-014-R6.12, Kern, CA

Built 1972 ADT: 39,000

BACKUS ROAD

Over: STATE ROUTE 14

09-KER-014-R9.14, Kern, CA

Built 1972 ADT: 39,000

SILVER QUEEN ROAD

Over: STATE ROUTE 14

09-KER-014-R12.15, Kern, CA

Built 1972 ADT: 17,950

WASHINGTON STREET

Over: SR 58

06-KER-058-R55.92-BKD, Kern, CA

Built 1974 ADT: 65,000

STATE ROUTE 58 WB

Over: MT VERNON AVENUE

06-KER-058-R56.41, Kern, CA

Built 1974 ADT: 2,000

STATE ROUTE 58 EB

Over: MT VERNON AVENUE

06-KER-058-R56.41, Kern, CA

Built 1974 ADT: 2,000

STATE ROUTE 58 WB

Over: OSWELL STREET

06-KER-058-R57.41, Kern, CA

Built 1974 ADT: 19,732

STATE ROUTE 58 EB

Over: OSWELL STREET

06-KER-058-R57.41, Kern, CA

Built 1974 ADT: 19,732

STERLING ROAD

Over: SR 58

06-KER-058-R57.93, Kern, CA

Built 1974 ADT: 58,000

FAIRFAX ROAD

Over: SR 58

06-KER-058-R58.44, Kern, CA

Built 1974 ADT: 65,000

MUROC RD

Over: STATE ROUTE 58

09-KER-058-R129.67, Kern, CA

Built 1974 ADT: 34,000

CLAY MINE ROAD

Over: STATE ROUTE 58

09-KER-058-R132.04, Kern, CA

Built 1974 ADT: 34,000

STATE ROUTE 155

Over: STATE ROUTE 178

06-KER-155-R70.98, Kern, CA

Built 1974 ADT: 4,200

STATE ROUTE 58

Over: COTTONWOOD ROAD

06-KER-058-R55.40, Kern, CA

Built 1974 ADT: 12,223

STATE ROUTE 58 EB

Over: COTTONWOOD ROAD

06-KER-058-R55.40, Kern, CA

Built 1974 ADT: 12,223

HUGHES LANE

Over: SR 58

06-KER-058-R52.89-BKD, Kern, CA

Built 1976 ADT: 45,000

SOUTH H ST

Over: SR 58

06-KER-058-R53.39-BKD, Kern, CA

Built 1976 ADT: 45,000

STATE ROUTE 58 WB

Over: SOUTH P STREET

06-KER-058-R53.91-BKD, Kern, CA

Built 1976 ADT: 4,500

STATE ROUTE 58 EB

Over: SOUTH P STREET

06-KER-058-R53.91-BKD, Kern, CA

Built 1976 ADT: 4,500

SR 204 (UNION AVE)

Over: STATE ROUTE 58

06-KER-204-R0.03-BKD, Kern, CA

Built 1976 ADT: 67,000

STATE ROUTE 58

Over: MADISON STREET

06-KER-058-R54.91, Kern, CA

Built 1976 ADT: 4,167

STATE ROUTE 58

Over: MADISON STREET

06-KER-058-R54.91, Kern, CA

Built 1976 ADT: 4,167

W58-S99 CONNECTOR

Over: SR 99 & WIBLE ROAD

06-KER-058-T52.33, Kern, CA

Built 1976 ADT: 145,000

REAL RD-E58 ON RMP

Over: SR 99 & WIBLE ROAD

06-KER-058-T52.33, Kern, CA

Built 1976 ADT: 19,000

S99-E58 CONNECTOR

Over: SR 58, SR 99 & WIBLE RD

06-KER-099-23.49-BKD, Kern, CA

Built 1976 ADT: 40,500

BRUNDAGE LN & OAK

Over: W58-N99 CONNECTOR RAMP

06-KER-058-R52.38-BKD, Kern, CA

Built 1976 ADT: 16,000

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026